| 摘要 |
FIELD: construction hardware. SUBSTANCE: catch has body 1 with cam 3, inner handle 4 and outer handle 5 connected together by square-section rod 6. Located on end of rod 6 is push-button 11 having protrusion 12 extending beyond handle 4. Made in handle 4 and in base 9 are slots 7 and 10 for pin 8 which is inserted in hole of rod 6. At neutral position, pin 8 is seated in slot 7 of handle 4 and does not prevent rotation of handle 4 relative to base 9, and door can be open by handle 4 or handle 5. At pressing on push-button 11, square- section rod is moved leftwards, and pin 8 moves from slot 7 of handle 4 to slot 10 of base 9 which is rigidly fastened on door. Thus, square-section rod 6 and consequently both handles are stopped and door is closed from inner side. To, open door, it is necessary to press on protrusion 12 of push-button 11 in direction of pointer "A", and rod 6 moves rightward and catch returns to neutral position. To open door from outside, pintle is inserted through hole 13 of outer handle 5, and end face of rod 6 is pressed on. This will move catch to neutral position. EFFECT: high efficiency. 2 cl, 4 dwg |
